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Finding the Fourth Proportional to 608,439.94, 839,652.69 and 336,493.78

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Solution

The fourth proportional to 608,439.94, 839,652.69 and 336,493.78 is: 464,364.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,439.94 : 839,652.69 = 336,493.78 : x
  2. Step 2: Convert to fraction form
    608,439.94/839,652.69 = 336,493.78/x
  3. Step 3: Cross multiply
    608,439.94x = 839,652.69 × 336,493.78
  4. Step 4: Simplify right side
    608,439.94x = 282,537,907,545.27
  5. Step 5: Solve for x
    x = 282,537,907,545.27/608,439.94
  6. Step 6: Final answer
    x = 464,364.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.